模板類的繼承
阿新 • • 發佈:2017-10-10
toc title strong 基類 proc derived 四種 itl ocl
模板類的繼承包括四種:
1.(普通類繼承模板類)
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- template<class T>
- class TBase{
- T data;
- ……
- };
- class Derived:public TBase<int>{
- ……
- };
2.(模板類繼承了普通類(非常常見))
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- class TBase{
- ……
- };
- template<class T>
- class TDerived:public TBase{
- T data;
- ……
- };
3.(類模板繼承類模板)
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- template<class T>
- class TBase{
- T data1;
- ……
- };
- template<class T1,class T2>
- class TDerived:public TBase<T1>{
- T2 data2;
- ……
- };
4.(模板類繼承類模板,即繼承模板參數給出的基類)
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- #include<iostream>
- using namespace std;
- class BaseA{
- public:
- BaseA(){cout<<"BaseA founed"<<endl;}
- };
- class BaseB{
- public:
- BaseB(){cout<<"BaseB founed"<<endl;}
- };
- template<typename T, int rows>
- class BaseC{
- private:
- T data;
- public:
- BaseC():data(rows){
- cout<<"BaseC founed "<< data << endl;}
- };
- template<class T>
- class Derived:public T{
- public:
- Derived():T(){cout<<"Derived founed"<<endl;}
- };
- void main()
- {
- Derived<BaseA> x;// BaseA作為基類
- Derived<BaseB> y;// BaseB作為基類
- Derived<BaseC<int, 3> > z; // BaseC<int,3>作為基類
- }
模板類的繼承